Search for dissertations about: "Mean-field approximation"
Showing result 1 - 5 of 25 swedish dissertations containing the words Mean-field approximation.
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1. Resource Allocation with Potts Mean Field Neural Network Techniques
Abstract : Potts mean field artificial neural network techniques are developed and applied to airline crew scheduling problems and routing problems. A propagator formalism in terms of Potts neurons is developed to handle global topological issues. An integrated method for identifying and classifying ECG complexes is presented. READ MORE
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2. Correlated Electronic Structure of Materials : Development and Application of Dynamical Mean Field Theory
Abstract : This thesis is dedicated to the development, implementation and application of a combination of Density Functional Theory and Dynamical Mean Field Theory. The resulting program is shown through several examples to be a powerful and flexible tool for calculating the electronic structure of strongly correlated materials. READ MORE
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3. Variational Methods in Combinatorial Optimization and Phylogeny Reconstruction
Abstract : Algorithms based on the variational approach, as used in statistical physics, are developed. For constraint satisfaction problems a novel cost function, based on information-theoretic arguments, is introduced, and an algorithm similar to the mean-field annealing algorithm is proposed. READ MORE
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4. Unifying first-principles and model approaches for strongly correlated materials : Interplay between long- and short-range correlations
Abstract : In materials with open 3$d$ and 4$f$ shells the valence electrons are relatively localized around the atoms which leads to large electron-electron correlations. These, so called strongly correlated materials, exhibit many intriguing properties such as high $T_c$ superconductivity, colossal magneto-resistance and heavy fermion behaviour. READ MORE
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5. Dynamical Modeling of Cloud Applications for Runtime Performance Management
Abstract : Cloud computing has quickly grown to become an essential component in many modern-day software applications. It allows consumers, such as a provider of some web service, to quickly and on demand obtain the necessary computational resources to run their applications. READ MORE